Power-transmission mechanism.



B. D. FULLER. an J. R. & T. A. REILLY.

POWER TRANSMISSION MEOHANISM.

APLIOATION FILED NOV. 15l 1909. 970,440. Patented Sept 13, 1910.

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B. D. FULLER & J. R. da T. A. REILLY.

POWER TRANSMISSION MBGHANISM.

APPLICATION FILED NOV.15 1909.

970,440. Patented sept. 13,1910.

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UNITED STATES PATENT oEEIeE.

BEN'AMIN D. FULLER AND JAMES R. REILLY, 0F LAKEWOOD, AND THOMAS A.REILLY, OF CLEVELAND, OHIO.

Specification of Letters Patent.

Patented sept. 1s, 191e.

Application filed November 15, 1909. Serial No. 528,101.

To all whom 'it may concern:

Be it known that we, BENJAMIN D. FULLER and JAMES R. REILLY, residentsof Lakewood, and THOMAS A. REILLY, a resident of Cleveland, county ofCuyahoga, State of Ohio, citizens of the United States, have jointlyinvented a new and useful Improvement in Power-Transmission Mechanisms,ofl which the following is a specification, the principle of theinvention being herein explained and the best mode in which we havecontemplated applying that principle, so as to distinguish it from otherinventions.

The present invention, relating as indicated to power transmissionmechanisms, has more particular regard to that type of mold makingmachine wherein a reeiprocable support carries the pattern plate and isthus adapted to withdraw the pattern from the independently supportedflask or mold box after the sand has been packed around said pattern.While in the embodiment of the invention herein illustrated it iscontem-` plated that such flask or mold box shall be manually placed onthe machine frame and removed therefrom after the pattern has beenwithdrawn, the several features characterizing the invention areobviously equally adaptable for use in connection with machines of therock-over type wherein the liask .is lowered away from the pattern platein the inverted position of the latter.

The object of the invention is the provision of a simple and compactmechanism for thus stripping the pattern from the mold, whether bylowering the pattern plate or the flask, whereby a maximum range ofmovement of the pattern-plate carrying support may be secured within aframe of prescribed dimensions. At the same time, it is sought toprocure an even steady movement of the support so as to avoid anytendency to damage the mold.

Yet another object is the provision for the easy and convenientadjustment of the machine to the reception of pattern plates andcorresponding flasks of various sizes.

To the accomplishment of the foregoing and related objects, saidinvention consists of the means hereinafter fully described andparticularly pointed out in the claims.

The annexed drawings and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawings z-Figure l is a side elevational view of amachine of the type above referred to, wherein are embodied our severalimprovements; Fig. 2 is a front elevation of such machine; Figs. 3 and tare transverse vertical sections of said machine on the line -m Fig. 2showing the pattern plate plunger in its raised and lowered positionrespectively; Fig. 5 is an elevational view of a detail of the machineviewed from the opposite side to that shown in Fig. l.; Fig. is asectional detail taken on line (S-( Fig. 2; ll`ig. 7 is anothersectional detail taken on the line 7 7, Fig. 3,- and Fig. S is asectional detail on the line 8 8 in Fig. 3.

While the general form and dimensions of the supporting frame of themachine are a matter of indifference so far as the spirit of theinvention is concerned, we prefer, in the interest of simplicity andstrength of construction, the form illustrated, which comprises twosimilar side members A rigidly secured together by transversely disposedframes A joining the lower portions of said side members. The upperportions of the latter are thus allowed to project, as will be obviousfrom Figs. 2 and 4. The upper faces n. of said side members are ofsuflicient extentie all'ord an adequate support for plates A? that forma table support for the flask or mold box (shown in dotted outline only,Figs. l and 2). These plates are adjustably secured to such uppersurfaces of the side members by means of blocks a loosely Fitted intosuitable undercut grooves o2 transversely formed in such upper faces, towhich blocks the plates are attached by means of flat-headed screws a3(Fig. 6) extending downwardly from above. The adjustment of the blocksin the undercut grooves is such that when these screws are drawn uptightly, the plates are firmly clamped to the side members, but byloosening such screws, their transverse adjustment may be readilyaccomplished, so as to accommodate between them pattern plates ofdifferent sizes. Such pattern plate, of which a typical form B isillustrated in Figs. 1 and 2, is carried by a vertically reciprocablesupport comprising two similar side members C of general T-shape thatare slidably held in the corresponding side members A of the machineframe, by being provided on their outer faces with a V-shaped tongue ctting in a groove of corresponding section on the inner faces of saidside members A. Such T-shaped frames are spaced apart and at the sametime rigidly secured together by means of two stay rods 0 and a lowerstay rod 04 oppositely threaded at their ends and fitted into suitableopenings in bosses 02 at the extremities of the frames (see Fig. 7).Lock nuts c3 at such shaft ends serve to retain the parts againstrelative movement, once they are secured in desired position. At thesame time it will be obvious that by loosening the lock nuts on eithershaft and rotating the shaft one way or the other, the support members Cmay be adjusted to take up wear and maintain a proper working fit in thegrooves of the side members A of the supporting frame. The pattern plateB` previously referred to, is designed to be attached directly to theupper portions of said frames C, thus constituting the pattern carryingsupport.

An actuating shaft D is transversely mounted in suitable bearings a5 inthe lower portions of the side frames A, which shaft is operativelyconnected with the patternplate support by means of two intermeshinggears fZ Z2 respectively rotatably mounted upon the lower transversestay rod c4 of said support, and fixedly mounted upon said actuatingshaft. Gears CZ Z2 are thus mounted on their respective shafts on axesremoved from said gears7 centers. rlhe centers of the gears, arehowever, connected by means of two bars (Z3, one on each side of thegears, which bars are notched at Z4 to receive said shafts in thatposition of the gears (illustrated in Fig. 4) in which their pivotalaxes most closely approach each other. This position, as will beobvious, corresponds with the lower position of the pattern platesupport, which latter is elevated to its upper position in that positionof the gears in which said axes are separated by the greatest distance,as shown in Fig. 3.

Any suitable means may be utilized for positively rotating actuatingshaft D, such means consisting simply of a crank (ZS in the form ofmachine illustrated. It will likewise be obvious that it is immaterialwhich of the intermeshing gears Z or Z2 be thus positively operated,although as a matter of convenience, the one having a relatively fixedaxis of support is preferably thus utilized. By means of thereciprocating mechanism just described, not only is an easy gradualmovement of the pattern plate support obtained, all jerks and stopsbeing eliminated; but a very much greater throw is also. secured withinthe limited space that can be provided in a machine having otherwisenormal dimensions, than where the prevailing arrangement of levers andthe like is utilized for connecting the actuating shaft with the patternplate support. Since such a large throw is thus obtained it iscontemplated that in handling relatively shallow patterns, it may befound a matter of convenience not to utilize the whole of such throw,and to this end we provide means for limiting the downward movement ofthe pattern plate support to whatever extent may be desired. Such meansconveniently take the form shown in Fig. 5 and consist of a radiallyprojecting pin on the corresponding end of the actuating shaft, and aseries of holes 6"" lying in the path of such pin, in any one of which astop pin ZT may be inserted to correspondingly limit the rotation of theactuating shaft and thus the downward movement of the aforesaid support(see Fig.

It may be added in conclusion, that other mechanical connections may beutilized between the actuating shaft D and reciprocable carryingsupport, in which the use of gears is eliminated. For the gears may inone sense be regarded as levers, or simplyas members rotatably attachedto the support and fram-e respectively, which members are connectedeccentrically of their axes by a third member consisting of paired bars(Z3. The function of the intermeshing gear teeth in connection with theforegoing, is to rotate said two members, or levers, about their pointsof attachment to said third member or connecting bars. This rotation ofth-e members is obviously accomplished simultaneously with theirrotation about their own proper axes of rotation in the frame andsupport respectively, and it is to the combined effect of the tworotative movements, producing a sort of lazy tong effect, that weattribute the advantageous results previously referred to.

Other modes of applying the principle of our invention may be employedinstead of the one explained, changel being made as regards themechanism herein disclosed, provided the means stated by any of thefollowing claims or the equivalent of such stated means be employed.

7e therefore particularly point out and distinctly claim as ourinvention l. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; and means for reciprocating saidelement, said means including two members respectively rotatablyattached to said element and frame, a third member connecting said twomembers eccentrically of their axes of rotation, and means for rotatingsaid two members about their points of attachment to said third member.

2. In a machine, the combination of a frame; a moving elementreciprocably held in said frame and means for reciprocating` `saidelement, said means including two members respectively rotatablyattached to said element and frame, a third member connecting said twomembers eccentrically of their axes of rotation, and gear means forrotating said two members about their points of attachment to said thirdmember.

3. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; and means for reciprocating saidelement, said means including two members respectively rotatablyattached to said element and frame, a third member connecting said twomembers eccentrically of their axes of rotation, and other meansconnecting said two members whereby, upon rotation about their axes,they are simultaneously rotated about their points of attachment to saidthird member.

4. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; and means for reciprocating` saidelement, said means including intermeshing gears respectively rotatablyattached to said element and frame at points removed from said gearscenters, and means for positively rotating one of said gears.

5. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; and means for reciprocating saidelement, said means including intermeshing gears respectively rotatablyattached to said element and frame at points removed from said gearscenters, means for retaining said gears in mesh, and means forpositively rotating one of said gears.

6. In a machine, the combination ot' a frame; a movingelementreciprocably held in said frame; and means for reciprocating saidelement, said means including' intermeshing gears respectively rotatablyattached to said element and frame at points removed from said gearscenters, a bar connecting such centers, and means for positivelyrotating one of said gears.

7. In a machine, the combination of a frame, a moving elementreciprocably held in said frame, and means for reciprocating saidelement, said means including intermeshing gears respectively rotatablyattached to said element and frame at points removed from said gearscenters, and means for positively rotating the gear thus attached tosaid frame.

8. In a machine, the combination of a frame, a moving elementreciprocably held in said frame, and means for reciprocating saidelement, said means including intermeshing gears respectively rotatablyattached to said element and frame at points removed from said gearscenters, bars connecting such centers one on each side of said gears,and means for positively rotating the gear thus attached to said frame.

9. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; and means for reciprocating saidelement, said means including a trans versely disposed actuating shaftand intermeshing gears respectively rotatably attached to said elementand ixedly secured to said `shaft at points removed from said gearscenters.

l0. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; means for reciprocating said element,said means including a transversely disposed actuating shaft andinter-meshing gears respectively rotatably attached to said element andiixedly secured to said shaft at points removed from said gears centers,

and means for retaining said gears in mesh.

1l. In a machine, the combination of a frame; a moving elelnentreciprocably held in said frame; means for reciprocating said element,said means including a transversely disposed actuating shaft andinter-meshing gears respectively rotatably attached to said element andixedly secured to said shaft at points removed from said gears centers;and bars connecting such centers, one on each side of said gears,whereby said gears are retained in mesh.

12. In a machine, the combination of a trame; a moving' elementreciprocably held in said trame; means for reciprocating said element,said means including a transversely disposed actuating shaft andinteraneshing gears respectively rotatably attached to said element andxedly secured to said shaft at points removed from said gears centers;and bars connecting such centers, one on each side of said gears,whereby said gears are retained in mesh, said bars being notched toengage said shaft in one position of said gears.

13. In a machine, the combination of a frame; a moving elementreciprocably held gears respectively rotatably attached to said clement,said means including inter-meshing gears respectively rotatably attachedto said element and frame at points removed from said gears centers andmeans for positively rotating one of said gears; and means for variouslylimiting the rotation of said gears in one direction.

14. In a machine, the combination of a frame; a moving elementreciprocably held in said f "ame, means for reciprocating said element,said means including inter-meshing gears respectively rotatably attachedto said element and frame at points removed from said gears centers andmeans for positively rotating the gear thus attached to said frame; andmeans for variously limiting the rotation of said last-named gear in onedirection and thereby correspondingly limiting the reciprocation of saidsupport frame.

l5. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; means for reciprocating said element,said means including a transversely disposed actuating shaft andinter-meshing gears respectively rotatably attached to said elementy andiXedly secured to said shaft at points removed from said gears7 centers;and means for variously limiting the rotation of said shaft in onedirection and thereby correspondingly limiting the reciprocation of saidsupport.

16. In a machine, the combination of a frame; a moving elementreciprocably held in said frame; means for reciprocating said element,said means including a transversely disposed actuating shaft andinter-meshing gears respectively rotatably attached to said element andfiXedly secured to said shaft at points removed from said gears centers;a radially projecting pin in said shaft, said frame being provided witha series of holes n the path of said pin; and another pin adapted to beinserted in any one of said holes as desired to variously limit therotation of said shaft and thereby correspondingly limit thereciprocation of said support. Signed by us this 8th day of November,

BENJAMIN D. FULLER. JAMES R. REILLY. THOMAS A. REILLY. Attested by- ANNAL. GILL, JNO. F. OBERLIN.

